add Makefile to .gitignore

- useful for a local Makefile in the working copy
Remove another TEXTUAL_ASSEMBLY_OUT
Merge pull request #2803 from dawgfoto/gitignoreMakefile

add Makefile to .gitignore
Merge pull request #2806 from yebblies/anothertao

[DDMD] Remove another TEXTUAL_ASSEMBLY_OUT